sagres

iTrader: (4)

So i picked up a 2010 ss m6 last night and got a check engine. They right away put it up on a lift. I was told it was the after market headers and catback. I know the exhaust is flowmasters but no idea about the headers. The cars does have O 2 sensors and the cats are a bit smaller than the stock ones. I forgot to grab the cade but it was something like "low ??????". Question is how do i get rid of the light and i think my car goes into limp mode craps on my MPG. I dont really want to go back to stock but dont want to take it to a tuner either as I got a lifetime warranty on the tranny and engine. Ill get the codes later and post.

sagres

iTrader: (4)

well figured it out its the rear o2 sensors looks like I need to turn them off.

Bobtorious

You got it. The o2s with headers are too far back, so they throw codes. Turn them off and you will be good to go.

dekan513

iTrader: (2)

yep , my headers and collectors have 2 sets of sensors on each side of the engine but i still asked the tuner to turn them off cause they are bad to throw a cel cause they are to far back , glad u got it lined out